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G. W. ROBINSON.-

LOG TURNER.

No. 315,073. Patented Apr. 7, 1885- wnegse; M W

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UNITED STATES PATENT OFFICE.

GEORGE W. ROBINSON, OF MILLVIEVV, FLORIDA.

LOG-TURNER.

SPECIFICATION forming part of Letters Patent No, 315,073, dated April 7, 1885.

Application filed July 11, 1883. Renewed January 17, 1885. (No model.)

To aZZ whom it may concern.-

Be it known that I, GEORGE W. ROBINSON, of Millview, in the county of Escambia and State of Florida, have invented certain new and useful Improvements in Log Rollers and Turners; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to that class of machines employed in saw-mills for rolling logs upon the carriage and turning the same when so loaded.

It consists, essentially, of a cast-ing or block slotted to receive the upright toothed stock of the log-roller, and adapted to slide at right angles to the carriage upon a slotted bed-block in such manner as to carry with it said upright toothed stock, and prevent its teeth from coming in contact with the passing head-blocks.

In the accompanying drawings like letters refer to the same parts in each figure, and in the same Figure 1' is an end view of a sawmill carriage with a section of the logway and the toothed bar or stock of a log-turner shown in connection with my improvements. Fig. 2 is a plan view of a portion of the carriage, showing the top of the slotted casting or block through which the toothed stock of the logturner is made to pass, the dotted lines showing the position of the block in contact with a passing head-block; and Fig. 3 is a vertical cross-section, on the line w m, Fig. 2, of the slotted sliding block with its bed plate or block and a portion of the toothed stock of the log-roller.

B B represent the frame-work of a saw-mill carriage, with a head-block, A, overhanging the carriage at the front end, in the usual way.

His the logway upon which the logs are rolled to the carriage.

E is theupright bar or stock of alog turner or roller, provided with the teeth 0 0 c. It extends from underneath the floor of the mill up through the casting F, its bed-block G, and the logway H, all of which are slotted to or some convenient part of the frame-work of the mill, with its front end near the carriage. The beveled end d of the sliding block F overhangs the bed-block G in such manner as to be struck and thrust back by the passing headblocks A of the carriage whenever the toothed stock E is in its forward position. A pair of inwardly-projecting shoulders near the front end of the slotin block Gprevent the toothed stock E from advancing beyond a certain point toward the carriage-a point at which the teeth 0 c willjust clear the edge of the carriage frame B, as seen in Fig. 2. A similar pair of shoulders, d d, project inwardly near the front end of the slot in sliding block F, and prevent the stock E from advancing beyond them. I

In using log rollers and turners as commonly constructed and operated, accidents are liable to occur, when the carriage is in motion,

from the teeth in the stock E striking the overhanging ends of the head-blocks A as they pass. To meet this difficulty I employ the herein described sliding block F, with its rounded end a projecting forward beyond a line connecting the front ends of the headblocks whenever the toothed stock E is in its extreme forward position. As the head-blocks A of the carriage pass the same they strike the rounded or beveled end a and thrust the block F back, carrying the stock E with it, to a point where the teeth 0 0 will clear the headblocks, thereby preventing accidents or injury to the machine while the carriage and log-turner are both in motion. The block F sliding freely back and forth upon the bedblock G, the stock E can be readily advanced to its forward position when desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters Iatent, is-

turner, of the block F, slotted to receive the toothed bar E, and adapted to slide at right angles to the carriage upon the base-block G, 15 and prevent the teeth in the bar E from coming in oontaotwith the passing head-blocks A of the carriage, together with toothed bar E and base-block G, substantially as and for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

GEORGE W. ROBINSON Witnesses: I I

EDWARD W. Ro INsoN, r G. ROBINSON: 

